Establishing the relations between observables and the cluster mass from direct observations is, however, difficult and not a straightforward process. The combination of high sensitivity and high angular resolution observations with data from detailed hydrodynamical simulations of clusters could alleviate these problems. This combination will enable one to accurately estimate the cluster mass and minimise the scatter on the inferred value. This work aims to achieve this goal by the use of observations from the NIKA2 SZ Large Program [1]} along with simulated data from The Three Hundred Project [2]}.
